Hi, all :<br><br>When I  run &quot;yum update&quot; command in my laptop , it displayed this :<br><br>root@foo Desktop]# yum update<br>Loaded plugins: aliases, changelog, fastestmirror, filter-data, keys, kmod, list-data, priorities, protect-<br>
              : packages, protectbase, security, tmprepo, verify<br>Loading mirror speeds from cached hostfile<br> * addons: <a href="http://mirrors.163.com">mirrors.163.com</a><br> * base: <a href="http://mirrors.163.com">mirrors.163.com</a><br>
 * extras: <a href="http://mirrors.163.com">mirrors.163.com</a><br> * rpmforge: <a href="http://ftp-stud.fht-esslingen.de">ftp-stud.fht-esslingen.de</a><br> * updates: <a href="http://mirrors.163.com">mirrors.163.com</a><br>
Skipping filters plugin, no data<br>0 packages excluded due to repository protections<br>Skipping security plugin, no data<br>Setting up Update Process<br>No Packages marked for Update<br><br><br>I  searched on the Internet some time , but had not any useful answer . <br>
<br>Could someone help me ?<br><br>Thanks  in advance ~<br>